US4887073A - Ceiling mounted fire detector assembly - Google Patents

Ceiling mounted fire detector assembly Download PDF

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Publication number
US4887073A
US4887073A US07/274,564 US27456488A US4887073A US 4887073 A US4887073 A US 4887073A US 27456488 A US27456488 A US 27456488A US 4887073 A US4887073 A US 4887073A
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US
United States
Prior art keywords
mount base
ceiling
mount
detector
terminals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/274,564
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English (en)
Inventor
Kouichi Nakao
Akira Toki
Kazushige Morisue
Hiroyasu Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Assigned to MATSUSHITA ELECTRIC WORKS, LTD. reassignment MATSUSHITA ELECTRIC WORKS, LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KOBAYASHI, HIROYASU, MORISUE, KAZUSHIGE, NAKAO, KOUICHI, TOKI, AKIRA
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Publication of US4887073A publication Critical patent/US4887073A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Definitions

  • the present invention is directed to a ceiling mounted fire detector assembly, and more particular to a mounting structure of a fire detector and its mount base assembly.
  • the mount base in the form of a top-closed and bottom-open barrel is provided with the terminal screws on the interior surface of the barrel together with the sockets.
  • the mount base is required to have an entrance hole for drawing the wires from the ceiling into the mount base for wiring connections with the terminal screws.
  • Such entrance hole is normally formed centrally of the top wall of the mount base with the screw terminals arranged along the periphery of the entrance hole, as seen also in FIG. 14a of U.S.P. 4,017,733 which shows the like detector mounting structure.
  • This structure imposes a severe limitation on reducing the size, particularly the diameter of the mount base because the wiring operation cannot be done easily without enough interior space afforded to the mount base.
  • the wiring connections would be restricted within the limited interior space of the mount base and not be successful at such an elevated site on the ceiling. Due to this limitation, the prior art mount base is not permitted to have a reduced size, which in turn prohibits the total compact arrangement of the detector and mount base assembly, although the compact arrangement is highly demanded for making the detector less conspicuously and giving an improved aesthetically pleasing appearance.
  • the present invention eliminates the above problem and provides an improved structure of ceiling mounted fire detector assembly.
  • the assembly in accordance with the present invention comprises a detector body and a mount base secured to a ceiling surface to detachably receive therein the detector body.
  • the mount base is a bottom-opened and top-closed barrel which fits in an opening in the ceiling surface and is secured thereto by means of fastening screws extending through a flange at the lower end of the mount base.
  • Included in the detector body is a sensor unit which has an inlet port at the lower end of the detector body to permit the entry of air for fire detection. Upon sensing of a fire condition, the sensor unit produces an electric signal to be transmitted to a signal line routed within the ceiling.
  • the detector body is provided on its top with a pair of conductor prongs for electrical connection as well as physical coupling with a corresponding pair of sockets formed on the outer top end of the mount base.
  • the conductor prongs extend through respectively through slots in the top wall of the mount base and come into engagement with the sockets upon being rotated about an upright axis of the detector body.
  • the sockets thus supporting the detector body are each electrically connected to each of terminals which are formed also on the outer surface of the top wall of the mount base for wiring connection with the signal line in the ceiling.
  • the assembly further includes a head cap detachable to the top of the detector body for shielding the terminals and includes a bottom cover ring attached to conceal mount holes in the flange through which the heads of the fastening screws are viewed.
  • the mount base has at its lower end a test lamp and has on its outer top wall a printed board carrying a driving circuit of the test lamp.
  • the driving circuit is electrically inserted between the terminal and the test lamp through conductor leads extending along the outer side wall of the mount base such that said test lamp is turned on in response to the detection of a fire condition by the sensor unit. Since the test lamp is provided on the side of the mount base fixed to the ceiling, it can be kept oriented to a desired direction, for example, a door of a room under surveillance for easy confirmation of the test lamp from one point or at the site of the door when the system is checked by simulating the fire. This is particularly advantageous when a number of fire detectors are mounted with all of their test lamps being oriented toward one particular point for immediate checking of all the detectors, it is therefore a further object of the present invention.
  • the mount base includes a pair of test pins which are connected to the terminals respectively for transmitting a test signal simulating the detection of a fire condition.
  • One end of each test pin is exposed onto the interior surface of the mount base to be readily accessible through the interior of the mount base from which the detector is detached such that only the test pins are exposed interior of the mount base while concealing therebehind the other electrical conductive members including the terminals and sockets.
  • the improved assembly of the present invention has still further advantageous features for facilitating the fixture of the mount base to the ceiling surface by utilizing unique clamp strips in combination with the fastening screws.
  • FIG. 1 is an exploded perspective view of a ceiling mounted fire detector assembly when viewed from the below in accordance with a preferred embodiment of the present invention
  • FIG. 2 is a like exploded perspective view of the assembly as viewed from the above;
  • FIG. 3 is a perspective view of a mount base of the above assembly with fastening screws and head cover held thereon;
  • FIG. 4 is a bottom view of the mount base with a bottom cover ring detached therefrom;
  • FIG. 5 is a top view of the mount base with a head cap and cover plate detached therefrom;
  • FIG. 6 is a sectional view of the mount base
  • FIGS. 7A to 7C are explanatory views respectively illustrating the installation procedure of the mount base
  • FIG. 8 is a top view of the bottom cover ring
  • FIG. 9 is a sectional view of the bottom cover ring.
  • FIG. 10 is a perspective view of the mount base similar to FIG. 3 but with modified fastening screw and clamp strips combination.
  • a ceiling mounted fire detector assembly in accordance with a preferred embodiment is shown to comprise a detector body 10 and a mount base 20 adapted to be fixed to a ceiling surface.
  • the detector body 10 includes a cylindrical housing 11 holding a sensor unit 12 with an inlet port 13 permitting the entry of air for detection of fire.
  • the sensor unit 12 which may be a smoke density sensor of photoelectric or ionization type or may be a heat-sensor, produces an electric signal upon sensing of a fire condition.
  • the sensor unit 12 of a suitable type is attached to the housing 11 with internal leads (not shown) connected respectively to a pair of conductor prongs 15 projecting on the top of the housing 11 so as to make up the detector body 10.
  • the conductor prongs 15 are positioned on the periphery of the top end of the detector body 10 in a symmetrical relation about an upright center axis of the detector body 10 and are formed at the respective upper ends with inwardly bent hooks 16.
  • the mount base 20 which is provided in the form of a top-closed and bottom-opened cylindrical barrel having a flange 30 extending around the lower end thereof, is installed into an opening 2 formed in the ceiling surface or ceiling board 1, for example as shown in FIGS. 7A to 7C, and receives therein the major portion of the detector body 10 in such a manner as to expose substantially only the inlet port 13 Of the sensor unit 12.
  • the mount base 20 is secured to the ceiling at the flange 30 by means of suitable screws.
  • the flange 30 has two types of mount holes 31 and 32 one for securing the flange 30 directly to the ceiling surface, and the other for securing the flange 30 to a ceiling box (not shown) with corresponding threaded holes.
  • a clamp strip 72 is utilized in combination with each of fastening screws 60 for gripping the peripheral portion around the opening z of the ceiling surface 1 between the flange 30 and the clamp strips 72, the details of which will be discussed later.
  • the mount base 20 has a top wall 21 somewhat recessed and formed with a pair of arcuate slots 22 extending circumferentially about an upright center axis of the mount base 20 in registration with the conductor prongs 15 on the detector body 10 so as to allow the detector body 10 to rotate about its center axis to some extent with the conductor prongs 15 extending upwardly through the respective slots 22.
  • Mounted on the outer side of top wall 21 is a pair of sockets 23 for electrical and mechanical connections with the conductor prongs 15 of the detector body 10.
  • Each socket 23 comprises a pair of upper and lower strips extending upwardly along the slot 22 and forming therebetween a click recess 24 for retaining the hook 16 of each conductor prong 15 after the detector body 10 is rotated.
  • the detector body 10 is detachably supported on the mount base 20 by the detachable engagement of the conductor prongs 15 with the sockets 23.
  • the terminals 25 are positioned at the outwardmost portions on top of the mount base 20 in a radially outwardly spaced relation from the sockets 23 and electrically connected respectively therewith for completing the electric path from the conductor prongs 15 to the signal line.
  • a printed board 40 mounted on the periphery of the top wall 21 between one of the terminals 25 and the complementary socket 23 is a printed board 40 forming thereon a driver circuit for a test lamp 41 which indicates the actuation of the sensor unit 12.
  • the test lamp 41 made of an LED is disposed on the lower surface of the flange 30 adjacent its inner periphery and is electrically connected to the circuit of the printed board 40 though conductor leads 42 extending vertically exteriorly along the side wall of the mount base do.
  • the sockets 23 are respectively fastened to the top wall 21 respectively by screws 27 which extend into the inner surface of the top wall 21, as best seen in FIG. 6, to define a pair of test pins accessible from the below for receiving a test signal simulating a fire condition.
  • the simulation of fire occurrence can be made simply by detaching the detector 10 from the mount base 20 and by conducting the test pin 27 such as by test probes from the below.
  • test lamp 41 responds to emit a light for confirmation of the normal system operation.
  • a top cover 43 is secured to the top wall 21 for covering the sockets 23 and their connection with the terminals 25, the printed board 40, and the conductor leads 42 for external insulation thereof from the terminals 25.
  • a head cap 50 of a plastic material which is detachable to the top of the mount base 20 by snap engagement of integral members 51 and 52 with corresponding notches 28 and 29 on the top periphery of the mount base 20.
  • the head cap 50 is attached to the mount base 20 after completing the wire connections of the signal line to the terminals 25 in order to protect the wiring connections at the terminals 25 from possible hazard in the ceiling.
  • the head cap 50 has a wiring slot $3 through which wires of the signal line are allowed to extend in one direction.
  • the head cap 50 includes a pair of catches 54 integrally projecting radially outwardly therefrom to retain the upper ends of the fastening screws 60 extending respectively through the mounting holes 31 of the flange 30 such that the mount base 20 is handled as attaching the fastening screws 60 prior to being installed to the ceiling.
  • Each fastening screw 60 has its upper end screwed into one longitudinal end of the clamp strip 62 so that the latter can be also held on the mount base 20 together with the fastening screws 60.
  • Each clamp strip 62 is an elongated member formed at its one end with a stop tab 63 extending transversely and somewhat downwardly. The other end of the clamp strip 62 is bent downwardly to define thereat a bite end 64 for effecting firm grip to the ceiling surface.
  • each of the clamp plates 62 Prior to the installation of the mount base 20, each of the clamp plates 62 is held in position with its major portion rest on top of the head cap 50 and with its lateral edge engaged with an integral rib 55 on the head cap 50, as best shown in FIG. 3.
  • Each of the rib 55 extends radially and terminates at the periphery of the head cap 50 to define thereat a stud $6 of which outer surface is flush with the outer side wall of the head cover 50 and the mount base 20.
  • the mount base 20 is inserted into the opening 2 of the oeiling board 1 with its flange 30 abutted against the lower surface of the ceiling around the opening 2.
  • the fastening screws 60 extend inside of the opening 2 with the clamp strips 62 kept resting on the head cap 50.
  • the corresponding clamp strip 62 is rotated together with the screw 60 until the stop tab 63 abuts against the stud 56. That is, the clamp strip 62 is rotated about a half turn to project outwardly above the peripheral portion of the opening 2, as shown in FIG.
  • a cover ring 70 is adapted to snap on the under surface of the flange 30 to conceal therebehind the heads of the respective fastening screws 60 as well as the mount holes 31 and 32 for providing an aesthetically pleasing finish.
  • Such snap engagement of the cover ring 70 is effected by means of integral hooks 72 at the inner periphery of the cover ring 70 and corresponding latches 34 on the side of the flange 30.
  • the cover ring 70 is also formed in its inner periphery with a notch 73 through which the test lamp 41 is viewed.
  • FIG. 10 shows the same mount base 20 but with a modified configuration for holding the fastening screws 60 upright through the flange 30.
  • each fastening screw 60 extends through a coil spring 80 and loosely fitted at one end adjacent its head with a seat element 81.
  • the coil spring 80 is compressed between the clamp strip 61 and the seat element 81 to thereby urge the seat element 81 against the upper surface of the flange 30 and at the same time urge the screw 60 itself upwardly at the clamp strip 62, so that the periphery of the mount hole 31 is kept gripped between the seat element 81 and the head of the screw 60.
  • the screw 60 will receive a self-sustaining force to be held in an upright position even without the help of the catch 54 on the mount base do, and accordingly the screw do can be successfully tightened with the spring so being further compressed so as to grip the periphery of the opening 2 between the clamp strip 62 and the flange 30 for firm securing of the mount base 20 to the ceiling.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
US07/274,564 1988-04-08 1988-11-22 Ceiling mounted fire detector assembly Expired - Lifetime US4887073A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63087642A JP2654073B2 (ja) 1988-04-08 1988-04-08 埋込み感知器のベース
JP63-87642 1988-04-08

Publications (1)

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US4887073A true US4887073A (en) 1989-12-12

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US07/274,564 Expired - Lifetime US4887073A (en) 1988-04-08 1988-11-22 Ceiling mounted fire detector assembly

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US (1) US4887073A (fr)
JP (1) JP2654073B2 (fr)
DE (1) DE3840162A1 (fr)
GB (1) GB2217495B (fr)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5149038A (en) * 1991-04-16 1992-09-22 Vancleve Richard A Mounting device for smoke alarm
US5333418A (en) * 1992-09-02 1994-08-02 Ronald Chambers Recessed smoke detector
US5555455A (en) * 1994-10-05 1996-09-10 Mcginley; Dan Recessed fire detector
US5577696A (en) * 1995-06-01 1996-11-26 Kramer; Clarence J. Smoke alarm mount
GB2312312A (en) * 1996-04-15 1997-10-22 E I Tech Ltd A mains powered alarm sensor unit having a primary battery backup
US5710541A (en) * 1995-08-03 1998-01-20 Simplex Time Recorder Co. Smoke/fire detector
US5808556A (en) * 1996-12-12 1998-09-15 Simplex Time Recorder Company Smoke/fire detector
WO2001043097A2 (fr) * 1999-11-16 2001-06-14 Brk Brands, Inc. Detecteur de fumee comportant un capteur presentant une configuration de montage amelioree
US6273388B1 (en) * 1998-09-25 2001-08-14 Apollo Fire Detectors Limited Mounting base for a removable head
US7026948B1 (en) * 1999-03-25 2006-04-11 Runner & Sprue Limited Alarm with removable detection circuitry cartridge
US20070194180A1 (en) * 2006-02-23 2007-08-23 Hubbell Incorporated Mounting bracket for an electrical device
WO2007138340A1 (fr) * 2006-05-27 2007-12-06 Protec Fire Detection Plc Améliorations dans des systèmes de connexion électrique et en relation à eux
US20080210839A1 (en) * 2006-11-15 2008-09-04 Klapp Charles R Smoke detector recessed box
US20100090857A1 (en) * 2008-10-10 2010-04-15 Varieur Steven T Emergency notification appliance mounting bracket
US20110048759A1 (en) * 2009-09-01 2011-03-03 Hubbell Incorporated Mounting assembly for electrical fixture
US20110177708A1 (en) * 2010-01-21 2011-07-21 Smith Benjamin J Quick mounting device with modules
US8231403B2 (en) 2010-08-31 2012-07-31 Smith Benjamin J Quick mounting device
US20130319752A1 (en) * 2012-06-01 2013-12-05 Crestron Electronics, Inc. Mount Assembly
US20160049054A1 (en) * 2013-03-19 2016-02-18 Michael Simmons Mounting bracket including emergency lighting
US9970912B2 (en) 2012-09-27 2018-05-15 Utc Fire & Security Americas Corporation, Inc. Modular smoke detection system
US10168029B1 (en) * 2017-09-18 2019-01-01 Dong Guan Bright Yinhuey Lighting Co., Ltd. China Replaceable ceiling fitting mounted quickly
US20190080581A1 (en) * 2017-09-13 2019-03-14 4Morr Enterprises IP, LLC Smoke Detection Enclosure for Recessed Installment
AU2019208149B1 (en) * 2018-05-18 2019-08-29 Steven Cliffe Concealed fire detector suspension apparatus
US11112282B2 (en) 2018-05-18 2021-09-07 Julian VANCE Concealed fire detector suspension apparatus
US11638357B2 (en) * 2020-02-14 2023-04-25 Gulf Security Technology Company Limited Mounting base, fire detector and fire alarm

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237677A (en) * 1989-10-07 1991-05-08 Crystalate Electronics Audible warning assembly
GB2320819A (en) * 1996-11-29 1998-07-01 Patrick John Mustard Detachable light fitting
IES990426A2 (en) * 1999-04-13 2000-11-15 E I Technology Ltd An alarm device
JP3608041B2 (ja) * 2000-03-31 2005-01-05 松下電工株式会社 火災感知器
JP4700170B2 (ja) * 2000-06-16 2011-06-15 ミサワホーム株式会社 火災報知器
JP2008532178A (ja) * 2005-02-28 2008-08-14 アール ローゼンブラット，ジェイソン 雰囲気異常状態検出モジュールを収容するための埋設型組立体
DE102009016675B4 (de) * 2009-03-31 2012-05-31 Balluff Gmbh Sensorvorrichtung oder Signalübertragungsvorrichtung
DE102018123767A1 (de) * 2018-09-26 2020-03-26 effexx Kommunikations- und Meldesysteme GmbH & Co. KG Sensor, insbesondere ausgebildet als Brandmelder

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US3900795A (en) * 1973-08-15 1975-08-19 Honeywell Inc Installation and test tool for ionization smoke detector
US4017733A (en) * 1974-04-18 1977-04-12 Hochiki Corporation Ionization type smoke sensor
US4236822A (en) * 1979-01-22 1980-12-02 Baker Industries, Inc. Fire detector housing
US4315594A (en) * 1979-01-23 1982-02-16 Cerberus Ltd. Connection apparatus for a fire alarm
CH633122A5 (en) * 1978-06-27 1982-11-15 Cerberus Ag Connecting device on an alarm consisting of a base part and an alarm part with sensor
JPS5894089A (ja) * 1981-11-30 1983-06-04 国産金属工業株式会社 コインタイマ−の不正使用防止シヤツタ−装置
EP0111156A1 (fr) * 1982-11-08 1984-06-20 Siemens Aktiengesellschaft Raccord pour avertisseurs d'incendie automatiques et raccord avec un châssis d'avertisseur pour le montage sur socles d'avertisseur déjà installés
EP0142827A1 (fr) * 1983-11-18 1985-05-29 Siemens Aktiengesellschaft Détecteur automatique de fumée et procédé pour leur fabrication
US4702452A (en) * 1986-09-10 1987-10-27 Leonard Penar Smoke detector mounting

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
CH558963A (de) * 1973-12-07 1975-02-14 Cerberus Ag Brandmelder.
JPS532980U (fr) * 1976-06-25 1978-01-12
DE2916412C2 (de) * 1979-04-23 1982-04-22 Hochiki Corp., Tokyo Kupplungsmechanismus für einen Branddetektor Rauchgasanzeiger o.dgl.
JPH0731346Y2 (ja) * 1987-03-09 1995-07-19 株式会社川口技研 感知器取付装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900795A (en) * 1973-08-15 1975-08-19 Honeywell Inc Installation and test tool for ionization smoke detector
US4017733A (en) * 1974-04-18 1977-04-12 Hochiki Corporation Ionization type smoke sensor
CH633122A5 (en) * 1978-06-27 1982-11-15 Cerberus Ag Connecting device on an alarm consisting of a base part and an alarm part with sensor
US4236822A (en) * 1979-01-22 1980-12-02 Baker Industries, Inc. Fire detector housing
US4315594A (en) * 1979-01-23 1982-02-16 Cerberus Ltd. Connection apparatus for a fire alarm
JPS5894089A (ja) * 1981-11-30 1983-06-04 国産金属工業株式会社 コインタイマ−の不正使用防止シヤツタ−装置
EP0111156A1 (fr) * 1982-11-08 1984-06-20 Siemens Aktiengesellschaft Raccord pour avertisseurs d'incendie automatiques et raccord avec un châssis d'avertisseur pour le montage sur socles d'avertisseur déjà installés
EP0142827A1 (fr) * 1983-11-18 1985-05-29 Siemens Aktiengesellschaft Détecteur automatique de fumée et procédé pour leur fabrication
US4702452A (en) * 1986-09-10 1987-10-27 Leonard Penar Smoke detector mounting

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5149038A (en) * 1991-04-16 1992-09-22 Vancleve Richard A Mounting device for smoke alarm
US5333418A (en) * 1992-09-02 1994-08-02 Ronald Chambers Recessed smoke detector
US5555455A (en) * 1994-10-05 1996-09-10 Mcginley; Dan Recessed fire detector
US5577696A (en) * 1995-06-01 1996-11-26 Kramer; Clarence J. Smoke alarm mount
US5710541A (en) * 1995-08-03 1998-01-20 Simplex Time Recorder Co. Smoke/fire detector
GB2312312A (en) * 1996-04-15 1997-10-22 E I Tech Ltd A mains powered alarm sensor unit having a primary battery backup
GB2312312B (en) * 1996-04-15 2000-02-09 E I Tech Ltd A mains powered alarm sensor unit having a primary battery backup
US5808556A (en) * 1996-12-12 1998-09-15 Simplex Time Recorder Company Smoke/fire detector
US6273388B1 (en) * 1998-09-25 2001-08-14 Apollo Fire Detectors Limited Mounting base for a removable head
US7026948B1 (en) * 1999-03-25 2006-04-11 Runner & Sprue Limited Alarm with removable detection circuitry cartridge
WO2001043097A3 (fr) * 1999-11-16 2002-01-24 Brk Brands Inc Detecteur de fumee comportant un capteur presentant une configuration de montage amelioree
US6377182B1 (en) * 1999-11-16 2002-04-23 Brk Brands, Inc. Smoke detector with sensor having improved mounting configuration
WO2001043097A2 (fr) * 1999-11-16 2001-06-14 Brk Brands, Inc. Detecteur de fumee comportant un capteur presentant une configuration de montage amelioree
US20070194180A1 (en) * 2006-02-23 2007-08-23 Hubbell Incorporated Mounting bracket for an electrical device
US7300025B2 (en) 2006-02-23 2007-11-27 Hubbell Incorporated Mounting bracket for an electrical device
WO2007138340A1 (fr) * 2006-05-27 2007-12-06 Protec Fire Detection Plc Améliorations dans des systèmes de connexion électrique et en relation à eux
US20080210839A1 (en) * 2006-11-15 2008-09-04 Klapp Charles R Smoke detector recessed box
US8511630B2 (en) * 2008-10-10 2013-08-20 Simplexgrinnell Lp Emergency notification appliance mounting bracket
US20100090857A1 (en) * 2008-10-10 2010-04-15 Varieur Steven T Emergency notification appliance mounting bracket
US20110048759A1 (en) * 2009-09-01 2011-03-03 Hubbell Incorporated Mounting assembly for electrical fixture
US8714506B2 (en) * 2009-09-01 2014-05-06 Hubbell Incorporated Mounting assembly for electrical fixture
US8162690B2 (en) 2010-01-21 2012-04-24 Smith Benjamin J Quick mounting device with modules
US8376777B2 (en) 2010-01-21 2013-02-19 Benjamin J Smith Quick mounting device with modules
US20110177708A1 (en) * 2010-01-21 2011-07-21 Smith Benjamin J Quick mounting device with modules
US8025528B2 (en) 2010-01-21 2011-09-27 Smith Benjamin J Quick mounting device with modules
US8231403B2 (en) 2010-08-31 2012-07-31 Smith Benjamin J Quick mounting device
US9407074B2 (en) * 2012-06-01 2016-08-02 Creston Electronics, Inc. Mount assembly
US20130319752A1 (en) * 2012-06-01 2013-12-05 Crestron Electronics, Inc. Mount Assembly
US9970912B2 (en) 2012-09-27 2018-05-15 Utc Fire & Security Americas Corporation, Inc. Modular smoke detection system
US20160049054A1 (en) * 2013-03-19 2016-02-18 Michael Simmons Mounting bracket including emergency lighting
US9685054B2 (en) * 2013-03-19 2017-06-20 Michael Simmons Mounting bracket including emergency lighting
US20190080581A1 (en) * 2017-09-13 2019-03-14 4Morr Enterprises IP, LLC Smoke Detection Enclosure for Recessed Installment
US10957175B2 (en) * 2017-09-13 2021-03-23 4Morr Enterprises IP, LLC Smoke detection enclosure for recessed installment
US10168029B1 (en) * 2017-09-18 2019-01-01 Dong Guan Bright Yinhuey Lighting Co., Ltd. China Replaceable ceiling fitting mounted quickly
AU2019208149B1 (en) * 2018-05-18 2019-08-29 Steven Cliffe Concealed fire detector suspension apparatus
US11112282B2 (en) 2018-05-18 2021-09-07 Julian VANCE Concealed fire detector suspension apparatus
EP3773938A4 (fr) * 2018-05-18 2022-02-16 Julian Vance Appareil de suspension de détecteur d'incendie dissimulé
US11638357B2 (en) * 2020-02-14 2023-04-25 Gulf Security Technology Company Limited Mounting base, fire detector and fire alarm

Also Published As

Publication number Publication date
GB2217495A (en) 1989-10-25
JP2654073B2 (ja) 1997-09-17
DE3840162C2 (fr) 1992-04-09
DE3840162A1 (de) 1989-10-19
GB8826974D0 (en) 1988-12-21
GB2217495B (en) 1992-05-20
JPH01259497A (ja) 1989-10-17

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